The Ferrite Ring Combo Pack is a convenient solution for troubleshooting RFI/EMI from unknown frequencies or multiple frequencies that require multiple suppression mixes. Included in this combo pack are ten 2.4″ OD/1.4″ ID ring toroids as follows:
Mix 75 effective from .15-10 MHz including AM Broadcast band – quantity: 3
Mix 31 effective from 1-300 MHz for general purpose – quantity: 4
Mix 61 effective from 200-2000 MHz for cell phone, WIFI, HDTV, Cable TV interference – quantity: 3
Dipole Antenna Wire Kit for dipoles from 160 meters to 6 meter. Includes 2 end insulators, #14 Insulated stranded copper wire and spade lugs and heat shrink for lugs for attachment to an optional balun (use 1:1 balun for most dipole arrangements).
The OCF Antenna Wire kits are for 80 meters (95 feet + 40 feet) that covers 80-40-20-17-15-12-10-6 meters or 40 meters (12 feet and 53 feet) that covers 40-20-17-15-12-10-6 meters or 160 Meters with additional tuning stub for 40/20. See OCF Manuals in Antenna downloads section for additional dimensions and setup.
Insulators are a very stealthy, strong, pair of 2 PVC, 2 1/4" long. 1" wide. 1 1/8" hole separation wire antenna insulators and may be black, gray or white depending upon inventory
The ring toroids are useful for AC/DC common mode choking with multiple turns as shown below
 AC Cable on F-240 Toroid – 7 turns |
 DC Cable on F240 – 4 turns |
The ring toroids can also be used on coax or signal lines as shown below:
 RG58 12 turns on FT240 |
 Ethernet Cable on F-240 Toroid – 7 turns |
For RFI/EMI wrap as many turns as possible for higher choking (under 30 mHz).